James Gunn Talks How To Kill Suicide Squad Characters - GameSpot

"There were a certain number of characters that I knew were going to die from the time I put them in the movie," Gunn said

"When I first pitched this idea to Warner Bros., I went into [Warner Bros

Film Chairman] Toby Emmerich's office and I had made copies or made photos of every single character and I had them all on a wall because it's a lot of characters

Going through them in that way, I knew some characters were going to die early and then other characters died as I told the story."